import 'package:flutter/material.dart';

//Flutter Container 容器 基本使用
void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    //脚手架
    return DefaultTabController(
      length: 8,
      initialIndex: 4,
      child: Scaffold(
        appBar: AppBar(
          title: Text('标题'),
          backgroundColor: Colors.blue,
          foregroundColor: Colors.white,
        ),
        body: Center(
          child: Container(
            color: Colors.blue,
            child: Container(
              width: 200,
              height: 200,
              color: Colors.grey,
              //外边距
              margin: EdgeInsets.only(top: 30, right: 40),
              //内边跑
              padding: EdgeInsets.only(left: 20, top: 20),
              child: Container(
                //0 0 剧中
                alignment: Alignment.center,
                color: Colors.red,
                child: Text('早起'),
              ),
            ),
          ),
        ),
        // This trailing comma makes auto-formatting nicer for build methods.
      ),
    );
  }
}
